Full cast of Metalocalypse

Mark Hamill

Senator Stampingston / Mr. Selatcia (voice)

62 episodes

Victor Brandt

General Crozier / Cardinal Ravenwood (voice)

62 episodes

Brendon Small

Skwisgaar Skwigelf / Pickles the Drummer / Nathan Explosion

62 episodes

Tommy Blacha

Toki Wartooth / William Murderface (voice)

62 episodes

Malcolm McDowell

Vater Orlaag (voice)

42 episodes

Laraine Newman

News Anchor / Woman (voice) / Newscaster (voice) / Pickles' Mom (voice) / News Reporter / Grandma / GMILF (voice) / Serveta Skwigelf / Molly / Rose Explosion (voice) / Nathan's Grandma (voice) / Liz Bane (voice) / TV Host / Sucubboso Explosionite (voice)

9 episodes

George Fisher

Metal Masked Assassin (voice) / Football Player (voice) / Angry Customer (voice) / Hippie (voice)

6 episodes

James Hetfield

Lorkey (voice) / Fan #1 (voice) / Troll (voice) / Sniper (voice)

4 episodes

King Diamond

Fast Food Restaurant Manager (voice) / The Blues Devil (voice) / Ronald von Moldenberg (voice) / Employee 421 (voice)

4 episodes

Kirk Hammett

Queen of Denmark (voice) / Barkeep (voice) / Smoked Fingers fan (voice)

3 episodes

Jon Schnepp

Additional Voices (voice) / Dr. Gibbits (voice)

3 episodes

Silenoz

Yaneemango Indian (voice) / Bobby (voice) / Prison Inmate (voice)

3 episodes

Angela Gossow

Lavona Sucubboso (voice) / Lavona Sucubboso / Sucubboso Explosionite (voice)

3 episodes

Mike Patton

2 episodes

Laura Silverman

Valerie Vransinn / Grishnack's Assistant (voice) / Rebecca Nightrod (voice)

2 episodes

Devin Townsend

Additional Voices (voice) / Teenage Fan at Juice Joint (voice)

2 episodes

ICS Vortex

Yaneemango Indian (voice) / Mitch (voice)

2 episodes

Werner Herzog

2 episodes

Brian Posehn

1 episode

Gene Hoglan

1 episode

Jeff Loomis

Mr. Murderface (voice)

1 episode

Warrel Dane

Sammy Twinskins (voice)

1 episode

Steve Smyth

Snizzy Bullets (voice)

1 episode

Andy Richter

J.F. Amarth (voice)

1 episode

Mike Keneally

Doctor (voice)

1 episode

Frankie Ingrassia

Rachel / Sucubboso Explosionite (voice)

1 episode

Slash

1 episode

Dave Grohl

1 episode